fix(idf_tools): Opt for the recommended tool in tools.json rather than the supported one

.gitlab/ci/common.yml

@@ -141,6 +141,10 @@ variables:
     $IDF_PATH/tools/idf_tools.py --non-interactive install esp-clang
   fi
 
+  # Since the version 3.21 CMake passes source files and include dirs to ninja using absolute paths.
+  # Needed for pytest junit reports.
+  $IDF_PATH/tools/idf_tools.py --non-interactive install cmake
+
   source ./export.sh
 
   # Custom clang

tools/idf_tools.py

@@ -1700,6 +1700,94 @@ def action_check(args):  # type: ignore
         raise SystemExit(1)
 
 
+# The following functions are used in process_tool which is a part of the action_export.
+def handle_recommended_version_to_use(
+    tool,
+    tool_name,
+    version_to_use,
+    prefer_system_hint,
+):  # type: (IDFTool, str, str, str) -> Tuple[list, dict]
+    tool_export_paths = tool.get_export_paths(version_to_use)
+    tool_export_vars = tool.get_export_vars(version_to_use)
+    if tool.version_in_path and tool.version_in_path not in tool.versions:
+        info('Not using an unsupported version of tool {} found in PATH: {}.'.format(
+            tool.name, tool.version_in_path) + prefer_system_hint, f=sys.stderr)
+    return tool_export_paths, tool_export_vars
+
+
+def handle_supported_or_deprecated_version(tool, tool_name):  # type: (IDFTool, str) -> None
+    version_obj: IDFToolVersion = tool.versions[tool.version_in_path]  # type: ignore
+    if version_obj.status == IDFToolVersion.STATUS_SUPPORTED:
+        info('Using a supported version of tool {} found in PATH: {}.'.format(tool_name, tool.version_in_path),
+             f=sys.stderr)
+        info('However the recommended version is {}.'.format(tool.get_recommended_version()),
+             f=sys.stderr)
+    elif version_obj.status == IDFToolVersion.STATUS_DEPRECATED:
+        warn('using a deprecated version of tool {} found in PATH: {}'.format(tool_name, tool.version_in_path))
+
+
+def handle_missing_versions(
+    tool,
+    tool_name,
+    install_cmd,
+    prefer_system_hint
+):  # type: (IDFTool, str, str, str) -> None
+    fatal('tool {} has no installed versions. Please run \'{}\' to install it.'.format(
+        tool.name, install_cmd))
+    if tool.version_in_path and tool.version_in_path not in tool.versions:
+        info('An unsupported version of tool {} was found in PATH: {}. '.format(tool_name, tool.version_in_path) +
+             prefer_system_hint, f=sys.stderr)
+
+
+def process_tool(
+    tool,
+    tool_name,
+    args,
+    install_cmd,
+    prefer_system_hint
+):  # type: (IDFTool, str, argparse.Namespace, str, str) -> Tuple[list, dict, bool]
+    tool_found: bool = True
+    tool_export_paths: List[str] = []
+    tool_export_vars: Dict[str, str] = {}
+
+    tool.find_installed_versions()
+    recommended_version_to_use = tool.get_preferred_installed_version()
+
+    if not tool.is_executable and recommended_version_to_use:
+        tool_export_vars = tool.get_export_vars(recommended_version_to_use)
+        return tool_export_paths, tool_export_vars, tool_found
+
+    if recommended_version_to_use and not args.prefer_system:
+        tool_export_paths, tool_export_vars = handle_recommended_version_to_use(
+            tool, tool_name, recommended_version_to_use, prefer_system_hint
+        )
+        return tool_export_paths, tool_export_vars, tool_found
+
+    if tool.version_in_path:
+        if tool.version_in_path not in tool.versions:
+            # unsupported version
+            if args.prefer_system:  # type: ignore
+                warn('using an unsupported version of tool {} found in PATH: {}'.format(
+                    tool.name, tool.version_in_path))
+                return tool_export_paths, tool_export_vars, tool_found
+            else:
+                # unsupported version in path
+                pass
+        else:
+            # supported/deprecated version in PATH, use it
+            handle_supported_or_deprecated_version(tool, tool_name)
+            return tool_export_paths, tool_export_vars, tool_found
+
+    if not tool.versions_installed:
+        if tool.get_install_type() == IDFTool.INSTALL_ALWAYS:
+            handle_missing_versions(tool, tool_name, install_cmd, prefer_system_hint)
+            tool_found = False
+        # If a tool found, but it is optional and does not have versions installed, use whatever is in PATH.
+        return tool_export_paths, tool_export_vars, tool_found
+
+    return tool_export_paths, tool_export_vars, tool_found
+
+
 def action_export(args):  # type: ignore
     if args.deactivate and different_idf_detected():
         deactivate_statement(args)
@@ -1719,58 +1807,10 @@ def action_export(args):  # type: ignore
     for name, tool in tools_info.items():
         if tool.get_install_type() == IDFTool.INSTALL_NEVER:
             continue
-        tool.find_installed_versions()
-        version_to_use = tool.get_preferred_installed_version()
-
-        if not tool.is_executable and version_to_use:
-            tool_export_vars = tool.get_export_vars(version_to_use)
-            export_vars = {**export_vars, **tool_export_vars}
-            continue
-
-        if tool.version_in_path:
-            if tool.version_in_path not in tool.versions:
-                # unsupported version
-                if args.prefer_system:  # type: ignore
-                    warn('using an unsupported version of tool {} found in PATH: {}'.format(
-                        tool.name, tool.version_in_path))
-                    continue
-                else:
-                    # unsupported version in path
-                    pass
-            else:
-                # supported/deprecated version in PATH, use it
-                version_obj = tool.versions[tool.version_in_path]
-                if version_obj.status == IDFToolVersion.STATUS_SUPPORTED:
-                    info('Using a supported version of tool {} found in PATH: {}.'.format(name, tool.version_in_path),
-                         f=sys.stderr)
-                    info('However the recommended version is {}.'.format(tool.get_recommended_version()),
-                         f=sys.stderr)
-                elif version_obj.status == IDFToolVersion.STATUS_DEPRECATED:
-                    warn('using a deprecated version of tool {} found in PATH: {}'.format(name, tool.version_in_path))
-                continue
-
-        if not tool.versions_installed:
-            if tool.get_install_type() == IDFTool.INSTALL_ALWAYS:
-                all_tools_found = False
-                fatal('tool {} has no installed versions. Please run \'{}\' to install it.'.format(
-                    tool.name, install_cmd))
-                if tool.version_in_path and tool.version_in_path not in tool.versions:
-                    info('An unsupported version of tool {} was found in PATH: {}. '.format(name, tool.version_in_path) +
-                         prefer_system_hint, f=sys.stderr)
-                continue
-            else:
-                # tool is optional, and does not have versions installed
-                # use whatever is available in PATH
-                continue
-
-        if tool.version_in_path and tool.version_in_path not in tool.versions:
-            info('Not using an unsupported version of tool {} found in PATH: {}.'.format(
-                 tool.name, tool.version_in_path) + prefer_system_hint, f=sys.stderr)
-
-        export_paths = tool.get_export_paths(version_to_use)
-        if export_paths:
-            paths_to_export += export_paths
-        tool_export_vars = tool.get_export_vars(version_to_use)
+        tool_export_paths, tool_export_vars, tool_found = process_tool(tool, name, args, install_cmd, prefer_system_hint)
+        if not tool_found:
+            all_tools_found = False
+        paths_to_export += tool_export_paths
         export_vars = {**export_vars, **tool_export_vars}
 
     current_path = os.getenv('PATH')

tools/test_idf_tools/test_idf_tools.py

@@ -90,6 +90,10 @@ class TestUsage(unittest.TestCase):
 
     @classmethod
     def setUpClass(cls):
+        with open(os.path.join(os.getenv('IDF_PATH'), 'tools/tools.json'), 'r') as json_file:
+            tools_dict = json.load(json_file)
+        cls.tools_dict = tools_dict
+
         old_tools_dir = os.environ.get('IDF_TOOLS_PATH') or os.path.expanduser(idf_tools.IDF_TOOLS_PATH_DEFAULT)
 
         mirror_prefix_map = None
@@ -452,6 +456,57 @@ class TestUsage(unittest.TestCase):
         self.assertTrue(os.path.isfile(deactivate_file), 'File {} was not found. '.format(deactivate_file))
         self.assertNotEqual(os.stat(self.idf_env_json).st_size, 0, 'File {} is empty. '.format(deactivate_file))
 
+    def test_export_recommended_version(self):
+        always_install_and_recommended_tools = []
+        for tool in self.tools_dict['tools']:
+            if tool['install'] != 'always':
+                continue
+            for version in tool['versions']:
+                if version['status'] != 'recommended':
+                    continue
+                always_install_and_recommended_tools.append({
+                    'name': tool['name'],
+                    'version': version['name']
+                })
+        self.run_idf_tools_with_action(['install'])
+        output = self.run_idf_tools_with_action(['export'])
+
+        for tool in always_install_and_recommended_tools:
+            self.assertIn(f"{tool['name']}/{tool['version']}", output)
+
+    def test_export_recommended_version_cmake(self):
+        tool_to_test = 'cmake'
+        tool_version = ''
+        for tool in self.tools_dict['tools']:
+            if tool['name'] != tool_to_test:
+                continue
+            for version in tool['versions']:
+                if version['status'] == 'recommended':
+                    tool_version = version['name']
+                    break
+
+        self.run_idf_tools_with_action(['install'])
+        self.run_idf_tools_with_action(['install', tool_to_test])
+        output = self.run_idf_tools_with_action(['export'])
+
+        self.assertIn(f'{tool_to_test}/{tool_version}', output)
+
+    def test_export_prefer_system_cmake(self):
+        tool_to_test = 'cmake'
+        self.run_idf_tools_with_action(['install'])
+        self.run_idf_tools_with_action(['install', tool_to_test])
+        # cmake is installed via apt
+        output = self.run_idf_tools_with_action(['export', '--prefer-system'])
+
+        self.assertNotIn(tool_to_test, output)
+
+    def test_export_supported_version_cmake(self):
+        tool_to_test = 'cmake'
+        self.run_idf_tools_with_action(['install'])
+        output = self.run_idf_tools_with_action(['export'])
+
+        self.assertNotIn(tool_to_test, output)
+
 
 class TestMaintainer(unittest.TestCase):